Tus Tsim, Zoo thiab kev siv ntawm Loj Span Steel Structure Warehouses

Vim muaj kev hloov pauv hauv kev lag luam thiab kev xa khoom lag luam, qhov kev thov rau qhov chaw loj thiab cov tsev hloov pauv tau nce zuj zus tam sim no. Qhov no tau ua rau tib neeg nyiam cov tsev tsim steel loj kom ua tau raws li cov kev xav tau no, vim tias cov tsev tsim steel muaj cov khoom tshwj xeeb ntawm lub cev thiab engineering. Loj-span steel qauv vaj tse tau dhau los ua qhov kev daws teeb meem zoo tshaj plaws rau kev daws qhov kev thov rau kev siv qhov chaw loj, thiab kev siv cov tsev xws li "kem-dawb, qhib tag nrho" layout designs tau hloov pauv txoj hauv kev khaws cia hauv cov khoom lag luam, kev tsim khoom, thiab kev xa khoom. Tshooj lus no yuav ua ib qho kev soj ntsuam hauv - qhov tob thiab kev ntsuam xyuas ntawm loj -span steel qauv vaj tse, nrog rau lawv cov ntsiab lus, cov qauv tsim, hom, cov txiaj ntsig tseem ceeb, thiab lawv cov kev siv hauv kev siv tswv yim.

Dab tsi yog loj-span steel qauv thiab loj-net-span steel qauv vaj tse?

1. Loj Span Steel Structure

Loj span steel lug xa mus rau architectural cov ntaub ntawv uas span ntau tshaj 30 meters kab rov tav. Lawv yog cov qauv nrog peb -spatial forms thiab muaj peb -dimensional load- bearing yam ntxwv nyob rau hauv load. Lawv muaj qhov zoo ntawm qhov tsim nyog load-cov kabmob, lub teeb rau tus kheej- hnyav, tus nqi qis, thiab ntau hom qauv. Lawv tau siv dav hauv warehouses, logistics centers, aircraft hangars, stadiums, loj rhiav, thiab lwm yam scenarios.

Lub zog siab, siab tawv, thiab lub teeb yuag ntawm cov hlau ua rau cov qauv steel muaj qhov ntev ntawm 30 meters, 50 meters, lossis txawm 80 meters. Cov qauv tsim qauv thiab cov txheej txheem prefabrication txuas ntxiv txhim kho kev tsim kho kev ua haujlwm thiab kev ruaj ntseg zoo ntawm cov qauv steel loj.

2. Loj Clear Span Steel Vaj tse

Cov tuam tsev loj loj loj (-nruab steel qauv nrog cov spans meej) sawv cev rau daim ntawv loj ntawm -span steel qauv. Tshwj xeeb, lawv xa mus rau loj- ncua lub tsev tsis muaj kab ke sab hauv, feem ntau nrog qhov ntev ntawm ntau dua 45 meters (150 ko taw), thiab qee qhov haujlwm tuaj yeem ua tiav qhov pom tseeb ntawm ntau dua 80 meters. Qhov kev tsim no tshem tawm tag nrho cov kev faib tawm ntawm qhov chaw los ntawm cov kab sab hauv, ua kom tiav qhov qhib tsis muaj kev cuam tshuam, thiab tuaj yeem hloov kho kom haum rau cov xwm txheej xws li automated storage systems (AS / RS), khaws cov tshuab hnyav, thiab cov khoom siv loj.

Piv nrog rau cov qauv loj loj -span steel qauv, qhov tseem ceeb ntawm qhov loj ntshiab span steel tsev yog nyob rau hauv kev siv qhov chaw zoo tshaj plaws - tsis muaj kab thaiv sab hauv, tso cai rau kev pub dawb ntawm forklifts, AGV neeg hlau, cranes, thiab lwm yam, thiab rhawv tuaj yeem npaj raws li txoj kev npaj, txhim kho kev ua haujlwm zoo.

3. Daim ntawv thov scenarios ntawm cov tsev loj loj

Sib nrug los ntawm kev sib koom ua ke ntawm warehousing thiab logistics, loj -span steel qauv kuj tau siv dav hauv:
Aerospace: Qhov chaw loj rau dav hlau hangars thiab tshav dav hlau terminals;
Hnyav kev lag luam: Heavy machinery manufacturing rhiav thiab cov khoom sib dhos cov nroj tsuag;
E-kev lag luam: Cov chaw thauj khoom loj loj thiab cov chaw khaws cia;
Pej xeem vaj: Gymnasiums, convention centers, loj tos halls;
Cov xwm txheej tshwj xeeb: Cov tsev khaws khoom thaum muaj xwm txheej kub ntxhov, ib ntus loj - qhov chaw ua yeeb yam, thiab lwm yam.

Core Design Nta ntawm Loj Span Steel Structure

1. Main structural system

Cov ntaub ntawv tseem ceeb ntawm cov loj -span steel qauv feem ntau suav nrog ob hom:portal ncej qauv thiab truss qauv:
Lub portal thav duab qauv yog ib txwm siv cov qauv txheej txheem, featuring yooj yim quab yuam kis tau tus mob, clear force transmission path, ceev tivthaiv fabrication, yooj yim ntawm Hoobkas ua, thiab siv sij hawm luv luv. Yog li ntawd, nws yog siv dav hauv kev lag luam, kev lag luam, thiab kev coj noj coj ua thiab kev lom zem rau pej xeem cov chaw thiab lwm lub tsev lag luam thiab pej xeem, thiab tuaj yeem ua tau raws li cov kev xav tau ntawm cov tsev loj tshaj -span.
Lub truss qauv yog ib hom qauv tsim los ntawm kev sib txuas rods ntawm ob qho kawg nrog hinges. Lub truss, tsim los ntawm cov rods ncaj, feem ntau muaj ib lub hom phiaj los yog spatial qauv nrog daim duab peb sab. Cov tswv cuab truss feem ntau dais axial nro los yog compression, yog li tag nrho siv lub zog ntawm cov khoom. Thaum qhov dav loj, nws tuaj yeem txuag cov ntaub ntawv piv rau cov khoom siv -web beams, txo tus kheej- hnyav thiab ua kom nruj.

2. Kev xaiv cov khoom siv

3. Prefabricated ntau lawm thiab bolt txuas tshuab

Cov khoom tseem ceeb ntawm cov loj -span steel lug (steel columns, steel beams, truss units, etc.) yog tag nrho cov tsim nyob rau hauv lub Hoobkas los ntawm CNC machining, nrog rau qhov tseeb yuam kev tswj nyob rau hauv ± 2 hli. Ntawm - qhov chaw teeb tsa siv siab - lub zog bolts rau kev sib txuas, tsuas yog xav tau me me ntawm vuam lossis txawm tias tsis muaj vuam, txhim kho kev tsim kho tau zoo thiab txo lub sijhawm tsim kho ntau dua 50%, thaum zam kev pheej hmoo zoo los ntawm - qhov chaw vuam.

4. Load Optimization Tsim

Cov qauv loj - ncua sij hawm yuav tsum tau nqa ntau yam khoom xws li lawv tus kheej qhov hnyav, qhov hnyav ntawm cov khoom thauj, kev sib sau ntawm cov daus, lub zog cua, thiab av qeeg. Thaum lub sij hawm tsim qauv, kev xam cov khoom hnyav yuav tsum tau ua. Cov khoom thauj mus tas li suav nrog cov qauv ntawm tus kheej qhov hnyav, qhov hnyav ntawm lub ru tsev thiab cov khoom siv phab ntsa, thiab qhov hnyav ntawm cov khoom ruaj khov, thiab lwm yam. Cov khoom siv sib txawv yuav tsum tau suav nrog tshwj xeeb raws li cov yam ntxwv hauv cheeb tsam - nyob rau hauv siab - snowfall cheeb tsam (xws li Norway thiab Canada), 50- xyoo rov ua dua tus nqi thiab txog li 400 kg / kg. Hauv thaj chaw typhoon ntug hiav txwv, txoj kab rov tav thrust tsim los ntawm cua siab tshaj qib 12 yuav tsum suav. Hauv av qeeg- thaj chaw uas muaj kev sib tw, cov lej seismic hauv zos yuav tsum tau ua raws. Cov khoom tsis sib haum xeeb suav nrog kev cuam tshuam sai sai thaum lub sijhawm cov khoom siv hoisting, cov dej ntws los nag, thiab lwm yam xwm txheej. Los ntawm cov kev suav zoo li no, cov neeg tsim qauv tuaj yeem ua kom zoo dua qhov sib txawv ntawm qhov ntev ntawm cov khoom thiab cov txheej txheem ntawm kev txhawb nqa, ua kom muaj kev ruaj ntseg thiab kev nyab xeeb ntawm cov qauv hauv ib puag ncig huab, thiab tib lub sijhawm, kom tsis txhob muaj cov khoom pov tseg.

5. Waterproofing, txuag hluav taws xob thiab tiv thaiv hluav taws

Rau kev ua dej tsis zoo ntawm cov qauv loj -span steel, siab- huab cua- cov xim resistant- cov ntawv coated los yog TPO/PVC waterproofing membranes yuav tsum tau xaiv. Optimize lub sealing ntawm lub ru tsev ridges, gutters thiab lwm yam pob qij txha thiab xyuas kom meej kev tsim qauv. Rau rwb thaiv tsev, iav ntaub plaub, pob zeb ntaub plaub thiab lwm yam ntaub ntawv rwb thaiv tsev tuaj yeem xaiv. Siv cov txheej txheem rwb thaiv tsev los yog ntawm - qhov chaw ntim cov txheej txheem, thiab ua kom cov dej noo zoo - pov thawj sealing ntsuas. Rau kev tiv thaiv hluav taws, ua ntej siv cov txheej txheem hluav taws kub rau cov qauv hlau, npog nws nrog cov ntawv thaiv hluav taws, thiab lwm yam, rau kev tiv thaiv hluav taws. Nyob rau tib lub sijhawm, txhim kho lub tswb hluav taws thiab tua hluav taws, thiab npaj txoj kev khiav tawm kom tsim nyog.

Lub ntsiab zoo ntawm Loj Span Steel Structure

1. Lub zog loj thiab lub teeb yuag, nrog rau kev thauj khoom zoo heev -cov kabmob muaj peev xwm

Lub zog tensile ntawm cov hlau tuaj yeem ncav cuag 355-690 MPa, uas yog 10-20 npaug ntawm cov khoom ua vaj tse, thaum nws qhov ceev tsuas yog ib qho -peb ntawm cov pob zeb. Cov yam ntxwv no ua rau loj - ncua steel qauv kom ua tiav super- qhov ntev ntawm ntau dua 30 meters thaum tuav qhov hnyav tag nrho qis dua li cov qauv pob zeb. Qhov no tuaj yeem txo cov nqi peev ntawm lub hauv paus engineering. Piv txwv li, tsis muaj kev khawb tob ntawm lub hauv paus pit yog yuav tsum tau; siv lub hauv paus ywj pheej tuaj yeem ua tau raws li cov load{11}}cov kev cai bearing, tshwj xeeb tshaj yog haum rau cov cheeb tsam uas nruab nrab geological tej yam kev mob.

2. Prefabrication thiab sib dhos, siv tau zoo

Tag nrho cov tseem ceeb ntawm cov loj -span steel lug yog standardized thiab prefabricated nyob rau hauv lub Hoobkas. Ntawm - kev tsim kho ntawm qhov chaw tsuas yog xav tau kev sib dhos thiab ntsia liaj qhov rooj, nrog cov txheej txheem yooj yim thiab ua haujlwm tau zoo, uas tuaj yeem txo lub sijhawm tsim kho thiab ua kom cov haujlwm ua haujlwm sai.
Tshwj xeeb, rau 3,000-square-meter loj-span steel qauv warehouse, lub sij hawm tsim kho tsuas yog siv sij hawm 30-45 hnub, thaum lub warehouse zoo sib xws yuav tsum tau 180-240 hnub. Tus nqi ua haujlwm rau kev tsim lub tsev khaws khoom steel tuaj yeem txo los ntawm 40%.

3. Ntsuab thiab ib puag ncig tus phooj ywg, nyob rau hauv txoj kab nrog txoj kev txhim kho kom ruaj khov

Hlau yog 100% recyclable thiab reusable khoom. Tus nqi ntawm cov hlau rov ua dua rau cov loj -span steel qauv tuaj yeem ncav cuag ntau dua 95%. Tom qab lub tsev raug rhuav tshem, cov hlau tuaj yeem rov ua dua thiab rov siv dua, thiab tsis muaj kev tsim khoom pov tseg yuav raug tsim tawm. Nyob rau tib lub sijhawm, thaum lub sij hawm tsim cov qauv steel, lub suab nrov qis thiab cov plua plav tsawg dua, thiab qhov cuam tshuam rau ib puag ncig ib puag ncig me me dua li ntawm cov pob zeb ua vaj tse - cov hmoov av thiab cov suab nrov uas tsim thaum lub sij hawm ua vaj tse yog 3-5 npaug ntawm cov qauv steel kev tsim kho.

4. Yooj yim thiab yoog raws, muaj peev xwm ua kom haum rau kev lag luam dynamic hloov

Qhov loj -span steel qauv, nrog nws cov qauv tsim, muaj qhov hloov pauv tau yooj yim thiab muaj peev xwm ua tau zoo, thiab tuaj yeem ua kom haum raws li cov kev hloov pauv ntawm kev lag luam kev lag luam - qhib layout yam tsis muaj kab tuaj yeem kho dua tshiab txhua lub sijhawm raws li qhov xav tau, piv txwv li, hloov pauv los ntawm kev siv cia rau ntau lawm rhiav, los yog hloov kho kom yooj yim ntawm nws; Nyob rau tib lub sijhawm, nws txhawb kev nthuav dav ntawm kev ncua lossis cheeb tsam los ntawm kev sib sau ua ke, piv txwv li, txuas ntxiv 20 meters los ntawm qhov qub 45-meter span, lossis ntxiv 3,000 square meters sab nraum qhov chaw uas twb muaj lawm 5,000 square meters, thiab cov txheej txheem nthuav dav yuav tsis cuam tshuam rau kev ua haujlwm ib txwm muaj; rau cov xwm txheej nrog cov kev xav tau ntawm lub xov tooj xws li cov tsev khaws khoom ib ntus rau cov haujlwm engineering thiab cov chaw ua yeeb yam, nws tuaj yeem raug tshem tawm sai sai, thiab cov khoom tuaj yeem raug thauj mus rau qhov chaw tshiab thiab rov ua dua tshiab, nrog tus nqi rov qab siv dua 90%.

5. Ntev- kav ntev thiab tus nqi- ua haujlwm tau ntev - lub sijhawm ua haujlwm

Tom qab raug kho nrog kub -dip galvanizing lossis fluorocarbon xim rau kev tiv thaiv corrosion, hlau tuaj yeem tiv taus ntau yam corrosive ib puag ncig xws li nag, daus, ntsev tsuag, thiab av noo, nrog lub neej kev pab ntawm 15-25 xyoo, deb tshaj li 5-8 xyoo ntawm cib thiab ntoo. Nyob rau tib lub sijhawm, cov qauv steel muaj zog toughness thiab tsis tshua muaj kev tawg lossis deform thaum siv txhua hnub, ua kev saib xyuas yooj yim heev. Tsuas yog yuav tsum tau kuaj xyuas qhov nruj ntawm cov bolts thiab kev ncaj ncees ntawm cov txheej txheem, thiab tus nqi tu txhua xyoo tsuas yog ib qho -feem peb ntawm cov khoom vaj khoom tsev.
Siv ib lub tsev loj -span steel qauv warehouse nyob rau hauv ib qho chaw sov thiab rainy cheeb tsam ntawm Thaib teb ua piv txwv. Lub tsev no tau txais kev tiv thaiv corrosion ntawm kub-dip galvanizing ua ke nrog fluorocarbon xim. Tom qab 6 xyoo ntawm kev siv, tsis muaj qhov pom tseeb xeb, thiab tus nqi tu txhua xyoo tsuas yog $ 3,000; thaum lub pob zeb warehouses ntawm tib lub teev nyob rau hauv cheeb tsam ib puag ncig muaj tus nqi tu txhua xyoo txog li $8,000.

6. Muaj zog tiv thaiv kev puas tsuaj, muaj peev xwm ua siab ntev tiv thaiv huab cua huab cua

Steel muaj lub siab elastic modulus thiab zoo heev toughness. Thaum ntsib kev puas tsuaj loj xws li av qeeg thiab typhoons, nws tuaj yeem nqus tau lub zog cuam tshuam los ntawm nws qhov me me deformation, tiv thaiv tag nrho lub cev qhuav dej ntawm cov qauv. Nws txoj kev nyab xeeb yog ntau dua li ntawm cov pob zeb ua vaj tse uas nkig thiab ua rau tawg thiab tawg.
Muaj cov xwm txheej tiag tiag los txhawb qhov no: Lub tsev loj -span steel qauv warehouse ntawm ib qho chaw nres nkoj hauv Okinawa, Nyiv, tau tsim raws li tus qauv ntawm kev tawm tsam 12-theem typhoon. Thaum lub sij hawm dhau los ntawm Typhoon "Mavah" nyob rau hauv 2023 (nrog cua siab tshaj plaws ntawm 185 km / h), lub ntsiab qauv ntawm lub tsev tseem nyob twj ywm; thaum peb lub tsev khaws khoom ua vaj tse nyob ib puag ncig tau raug kev puas tsuaj loj xws li phab ntsa tawg thiab ru tsev. Tsis tas li ntawd, cov ntaub ntawv los ntawm Wenchuan av qeeg hauv Suav teb kuj qhia tau hais tias cov ciaj sia taus ntawm cov qauv steel yog ntau dua li cov pob zeb ua vaj tse, tag nrho lees paub nws qhov kev ua tau zoo seismic tsis kam.

Lub ntiaj teb no classic daim ntawv thov rooj plaub ntawm Loj Span Steel Structure

Case 1: Amazon's logistics hub hauv Ohio, USA

Qhov chaw logistics no muaj tag nrho thaj chaw tsim kho ntawm 100,000 square meters. Tag nrho qhov chaw sab hauv yog pub dawb los ntawm txhua kab thaiv, thiab lub peev xwm cia ntawm lub tsev khaws khoom yog siab li 5 lab cov khoom. Kev ua tau zoo ntawm kev txheeb xyuas cov khoom tau nce los ntawm 40%, ua rau nws yog ib qho kev qhia ua haujlwm rau loj -span steel qauv daim ntawv thov nyob rau hauv lub ntiaj teb no e- lag luam logistics sector.

Case 2: Frankfurt SkyRail Center hauv Tebchaws Yelemees

Lub tsev no ntiav ib qho tshwj xeeb nkhaus qhov chaw truss steel qauv system. Cov khoom tseem ceeb yog qis- alloy siab- lub zog steel uas tuaj yeem tiv taus -30℃qhov chaw txias. Dhau li ntawm cov kev xav tau ntawm kev thauj mus los, cov qauv loj-span steel nrog cov qauv zoo nkauj zoo nkauj kuj ua rau nws lub tsev tseem ceeb hauv cheeb tsam.

Case 3: Beijing National Stadium

Lub chaw ntau pob tseem ceeb rau xyoo 2008 Beijing Olympics tau tsim nrog cov qauv spatial truss. Nws qhov txawv mesh-zoo li steel qauv tsim ib qho kev sib txawv heev thaum ua tiav cov qauv kev ruaj ntseg nyob rau hauv ib qho loj. Tag nrho qhov chaw muaj qhov ntev txog li 343 meters, nrog rau sab hauv uas yog qhov chaw qhib loj tsis muaj kab, muaj peev xwm ua tau ze li ntawm 100,000 tus neeg saib.

Case 4: Ib qho chaw txias txias hauv Norway

Nws siv 40-meter-span loj-span steel qauv, ua ke nrog 40℃kaum ru tsev thiab daus- cov kab hluav taws xob yaj, uas tuaj yeem tshem cov daus sai sai thiab tiv thaiv kev puas tsuaj. Lub cev tseem ceeb siv Q355B siab-lub zog steel thiab kev sib cuam tshuam kev txhawb nqa los txhim kho kev ruaj ntseg. Tom qab muab tso rau hauv kev siv rau 5 xyoos, nws tau ntsib 3 qhov cua daj cua dub loj, thiab tsis muaj ib qho ntawm cov qauv tau deformed lossis lub ru tsev tau tawg. Nws kev ua haujlwm los tiv thaiv daus deb tshaj li ntawm cov khoom vaj khoom tsev ib txwm muaj.

Loj Span Steel Structure FAQ

1. Dab tsi yog qhov loj -span steel qauv? Qhov loj npaum li cas yog qhov "loj ncua"?

Ib tug loj -span steel qauv hais txog lub tsev qauv uas steel yog lub ntsiab load- bearing tivthaiv thiab kab rov tav ncua mus txog 30 meters los yog ntau tshaj. Hauv kev lag luam, 30 metres feem ntau suav hais tias yog tus qauv rau kev txhais lub tsev loj -span, thaum lub dav ntawm cov loj clear-span steel tsev (steel tsev tsis muaj nruab nrab kab) feem ntau yog tshaj 45 meters.

2. Lub neej ua haujlwm ntev npaum li cas ntawm -span steel qauv? Puas yog tus nqi kho mob siab?
Yog tias qhov loj -span steel qauv tau dhau los ua tus qauv tiv thaiv- kev kho corrosion, xws li kub-dip galvanizing, nws lub neej kev pabcuam tuaj yeem ncav cuag 15-25 xyoo; Kev saib xyuas txhua hnub yog qhov yooj yim, thiab nws tsuas yog yuav tsum tau kuaj ib xyoos ib zaug seb cov bolts puas xoob thiab seb cov txheej txheej puas zoo li qub. Tus nqi tu txhua xyoo yog kwv yees li 0.5% mus rau 1% ntawm tag nrho cov nqi tsim kho ntawm lub tsev.

3. Lub sij hawm tsim kho ntawm loj -span steel qauv siv sijhawm ntev npaum li cas? Nws yuav siv sijhawm ntev npaum li cas los ua kom tiav 3,000㎡ warehouse?
Qhov loj -span steel qauv yog tsim los siv lub Hoobkas prefabrication + ntawm - qhov chaw sib dhos txoj kev, uas ua rau lub sij hawm siv luv luv.
Noj 3,000㎡ loj-span steel warehouse ua piv txwv, tus tsim siv sij hawm 10 mus rau 15 hnub, lub Hoobkas ntau lawm yuav siv sij hawm 15 mus rau 20 hnub, thiab nyob rau hauv - qhov chaw installation yuav siv sij hawm 10 mus rau 15 hnub. Lub sijhawm ua haujlwm tag nrho yog kwv yees li 35 txog 50 hnub.
Yog tias qhib -kem loj-span steel qauv (loj clear span steel tsev) los yog truss qauv siv, tag nrho cov sij hawm yuav raug ncua los ntawm 10 mus rau 15 hnub. Txawm li cas los xij, txawm li cas los xij, nws tseem luv dua li lub sijhawm tsim kho ntawm lub tsev khaws khoom pob zeb (180 txog 240 hnub).

4. Puas yog steel 100% recyclable? Puas loj -span steel qauv ntau tus phooj ywg ib puag ncig dua li pob zeb?
Yog, steel yog 100% recyclable thiab reusable khoom. Tus nqi ntawm cov hlau rov ua dua nyob rau hauv loj -span steel qauv tuaj yeem ncav cuag ntau dua 95%, thaum tus nqi rov ua dua ntawm pob zeb tsuas yog kwv yees li 30%. Tsis tas li ntawd, kev tsim cov qauv steel tsim cov suab nrov tsawg thiab cov plua plav tsawg, thiab kev siv lub zog thaum lub sij hawm tsim kho yog 40% qis dua li ntawm cov pob zeb ua vaj tse. Nws tuaj yeem suav tau tias yog ib qho kev daws teeb meem zoo ib puag ncig ntau dua.

Xaus

Tam sim no, kev lag luam thiab kev xa khoom tau tsim kho sai, thiab tib neeg cov kev xav tau ntawm cov tsev tau dhau los ua kom pom tseeb ntau dua - lawv xav tau qhov chaw loj dua, kev siv tau yooj yim dua, thiab ua haujlwm tau zoo dua. Loj -span steel qauv ua tau raws li cov kev xav tau no. Lawv muaj zog, hnav, thiab tuaj yeem ua tiav hauv lub Hoobkas thiab tom qab ntawd sib sau ua ke ntawm -site. Nws kuj yog qhov yooj yim heev los nthuav tom qab. Tshwj xeeb tshaj yog qhov loj -span steel qauv tsis muaj kab, tsis muaj kab thaiv tag nrho qhov chaw, uas ua rau muaj kev yooj yim heev rau cov teb xws li kev siv cov khoom lag luam thiab kev khaws cov tshuab hnyav, txhim kho kev ua haujlwm zoo.

Yog tias koj tab tom npaj ib qhov loj -span tsev project thiab xav tau customized loj -span steel lug lossis loj clear-span steel tsev tsis muaj kab, thov hu rau peb pab neeg ua haujlwm. Peb yuav muab rau koj nrog tag nrho - kev pabcuam txheej txheem los ntawm kev tsim, tsim khoom, kev teeb tsa rau kev saib xyuas raws li koj cov kev xav tau khaws cia, cov xwm txheej hauv cheeb tsam, thiab kev npaj nyiaj txiag, pab koj tsim kom muaj txiaj ntsig zoo, nyab xeeb, thiab ruaj khov loj - ncua lub tsev!

Hu rau tam sim no